Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22e3b35ed4cdee7…

MALICIOUS

PDF

55.5 KB Created: 2020-07-31 22:03:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c1ddcbda7d6f9e2d443c4fc52eaad81 SHA-1: fcc9c4da55adf520284f3a22d4a072e8610eec66 SHA-256: f22e3b35ed4cdee7c80bb2e213d41b987fe964818071f9c82736512c8d16ee03
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body text, though partially corrupted, includes the malicious URL, suggesting the intent is to trick the user into clicking the link under the guise of downloading a PDF. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing confirms the primary URL leads to known malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=1st+edition+player%2527+s+handbook+pdf In PDF document text
    • http://files.katikatiwaihibeachcommunityawards.co.nz/uploads/1/3/0/9/130969461/5a181d708.pdfIn PDF document text
    • http://files.woodcreekhighschoolband.com/uploads/1/3/1/4/131453847/livunifovupopodoxe.pdfIn PDF document text
    • http://files.celestepedri.ca/uploads/1/3/1/4/131453894/vasozasipesa_numopimikuba_lutitosa_poforirizasojeb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/91285001745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7053/8406/files/39911829167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/78031630257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4827/1000/files/fojaxasofepebojijimimal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/23727847429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6265/6157/files/86443833233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/gatodusovexaramibatite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7185/6026/files/81210051675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9122/1923/files/mimezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4872/9766/files/keguvidewurijunu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000099fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99FD 5428 bytes
SHA-256: f6f44b7f0814810be44faf858cf649bf92518ff83795075f004f6e476f2b9cac
font_01_sfnt_off0000ac77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC77 10736 bytes
SHA-256: c21af5940530ad409b59e1cf9c6ea5699418cc4b980e47d0edc7bc231ea679d7